Laurel Fishman is the star of "Stevie's Spanking" and "We Are Not Alone". See The Real Frank Zappa Book, pages 212-216.
She can be heard on "So Happy" on Steve Vai's Flexable Leftovers and also on "Real Illusion - Reflections".
real illusions - reflections
(2005, cd, usa, favored nations)
additional info: Charles Ulrich